问题
选择题
Mr. and Mrs. Green find _____ good for their health to take a walk after supper. [ ]
A. this is
B. that
C. this
D. it
答案
答案：D
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Mr. and Mrs. Green find _____ good for their health to take a walk after supper. [ ]
A. this is
B. that
C. this
D. it
答案：D